Question: When did Keio University enroll 2492 students?
Paraphrase: In what year did Keio University's enrollment reach 2492 students?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q815432 p:P2196 ?s . ?s ps:P2196 ?x filter(contains(?x , '2492.0')) . ?s pq:P585 ?value}